Typewriting machine



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E. M. IF". @UHGNARD TYPEWRITING MACHINE 2 She@ts-Sheet 2 Patented Au. 7, l

t :3 FRANCOIS GUIEGNABD, 0h SHANGHAI, CHINA, KEN '03 TQ 'UNJDEE-.

WOOD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A. CORPORATION OF DELAWE.

TYPEWRITTNG MACHINE.

Application filed @ctober 15, 1918. Serial No. 258,211173'.

To all whom it may concem:

Be it known that T, Enwnr Mano FRANCOIS GUIGNARD, a citizen of Switzerland, residing in the city of Shanghai, in the Province of Kiangsu and Republic of China, have Invented certain new and useful Improvements in Typewriting Machines, of which the following is a s ecification.

My invention relates to manifolding mechanism for typewriting machines, the purpose thereof belng to provide manifolding devices in which acop of all the letters or other matter impresse upon successive work-sheets may be made upon acontinuous web of paper carried by the carriage 0f the machine; and for -facilitating the making of ,an additional carbon copy upon a separate sheet introduced into the machine along with each work-sheet, as distinguished from a continuous web.

My invention includes a frame on the car- I riage which serves as a support for the web of paper upon which a carbon copy of all the matter typed upon the work-sheet is preserved, the said web extending about the platen together with an endless band or belt of carbon coated paper or fabric which also passes about the platen and a suitable guide roll carried by the frame, and which carbon band travels in contact with the web referred to and produces a copy thereupon of the matter typed upon the work-sheet.

As an additional feature, a second endless traveling band or-belt of carbon is provided, which also asses about the platen of the machine and about guide rollers carried by the frame referred to; the second band resting upon and moving with the firstmentioned band and being arranged that a separate sheet of paper may be introduced between the two bands and a carbon copy made thereon by the second hand or belt.

The work-sheet itself is inserted into the machine about the platen and outside the second of the above-mentioned traveling belts or webs of carbon coated fabric, so that as the work-sheet is written upon a carbon copy is made upon the separate sheet of paper moving between the two travellng carbon coated webs or belts, which sheet is removed from the machine along with the work-sheet; while a continuous record of all the matter t ped upon successive work-sheets is preserv upon the endlem web carried by the frame and associated with the carriage of the machine until the web has been exhausted, this copy being produced by the inner one of the two traveling carbon coated belts referred to.

Other features and advantages will hereinafter appear.

In the accompanying drawings Figure 1 is a view illustrating a type writer carriage equipped with my invention, the view showing an elevation of the device as seen from a position in front of the machine.

Figure 52 is a view rincipally in elevation and showing the device as seen from a position to the left of Figure 1, or from the left-hand end of the typewriter carriage.

Figure 3 is a fragmentary viewillustrating a detail of the platen.

Referring to thedrawings, the reference numeral 3 designates the traveling platen of a typewriting machine, the same being turned or advanced in a series of step-by-step movements by means of suitable feeding mecha nism operating upon and through a ratchet wheel 4 operativly connected with the platen; the details of the ratchet mechanism, however, not being illustrated or referred to herein as the same form no part of this present invention. v 1 f The two ends of the platen are supported by the vertically movable shift frame having ends 5, 5 in the embodiment of my invention illustrated, to which frame ends the frame which carries the carbon bands and the endless web herein referred to is shown as secured. j

The frame above referred to is illustrated as carrying upright end members 7, 8, said uprights being preferably secured to one another and braced by a tie-bar 9 extending between them to thereby impart rigidity-to the frame as a whole. The Y form of the end members of the frame is illustrated in Figure 2 of the drawings; and said members are provided with bearings adjacent their upper ends in which a shaft 10 carrving a guide roll 11 is journaled. The reference numeral 12 designates an endless band or belt of carbon coated paper or fabric extending about the guide roller 11 and about the laten 3 of the machine.

T e end members 7 8 are provided each with a slot 13, see Figure 2, and thereference numeral 1e designates a winding shaft, the ends of which are supported in guide blocks located within the said slots, which shaft serves as a sup rt for a wind ing roll of paper 15; the sald roll constituting one end of a web of paper '16 upon which a continuous record of the writing impressed upon successive work-sheets is preserved, which strip or web passes about the laten 3 between the same and the carbon and 12. The other end of said web or strip is Wound upon or formed into a supply roll 17, the latter roll being supported by a shaft 18 the ends of which are also supported in guide blocks located within the slots 13 formed in the frame members.

Interposed between the rolls 15 and 17 is an idle roller 19, the same being carried by a shaft 20 the ends of which are also supported in uide blocks located. within the slots 13. prings 2-1 acting against abutments 22 carried by the end frames, and which springs act u on the shaft 18 through the guide blocks whereby its ends are sup ported, are also provided, the purpose of these springs being to force the upper paper roll 17 downward and thus keep the web surfaces of the rolls 17. 15 in firm contact with the intermediate idle roller 19.

In view of the premises it will be appreciated that as the platen 3 is advanced, ordinarily in the direction of the arrow shown in Figure 2, the rear reach 23 of the continuous web of paper 16 will be subjected to tension, and the strip of paper will be withdrawn or unwound from the upper roll 17. The rotary motion of the surface of this roll of web 17 will be transmitted through the idle roller 19 to the surface of the lower roll of web 15, the rotation of which last-mentioned roll will wind the front reach 24 of the web thereupon; the web being wound upon this last-mentioned roll with the same speed that it is unwound from the first-mentioned rolls as the rate of movement of the peripheries of the rolls 17 and 15 is equal at all times, as will be appreciated. The web of paper upon which t e continuous record is made is therefore unwound from one of the rolls and simultaneously wound upon the other by the action of the platen of the machine, transmitted through the strip itself, and no auxiliary means is necessary to advance the strip.

In a device such as is above described it is obvious that successive work-sheets may be inserted into the machine and typed upon, and that a continuous record of al the matter typed upon a plurality of such sheets will be reserved upon the web 16 carried by the rol 15 and 17. My invention in its more comprehensive form, however, includes means whereby a carbon copy of the matter written upon a work-sheet may be made upon a separate sheet to be inserted into the machine along with the work-sheehand re moved therefrom at the completion of each individual work-sheet, without, however, interfering with the continuous record served upon the web carried by the r0112.

In order to accomplish the endlast above referred to I provide the end frames 7, 8 with additional pairs of bearings upon the branches of the Ys within which shafts 25, 26 carrying idle rollers 27, 28 are journaled; and 29 designates a second endless band or web of carbon coated paper or fabric which passes around said last-mentioned idle rollers and about the platen of the machine, said second belt resting u n and moving with the first-mentioned be t 12. ,The bearings for the shafts 25, 26 are preferably spaced apart from one another in order to maintain the stretches of the belt or band 29 extending from the platen sufiiciently spaced from the corresponding stretches of the band 12, so as to facilitate the introduction between the two carbon bands 12 and 29 of a sheet 30, which sheet in introducing it into the machine may if of considerable length be doubled loosely upon itself, as shown in dotted lines in Figure 2.

The sheet 30 is provided for the purpose of making a carbon copy of the matter written on the work-sheet 31 with which the type carried by the t pe-bars 32 engage, the usual vibrating r'hbon mechanism 33 being provided in order to secure an imression of the type u on the outer or origmal work-sheet 31. carbon copy of the matter typed upon each sheet 31 is obviously produced upon a second sheet 30 b means of the outer traveling band or bel t 29, while a second carbon copy of the matter typed upon a plurality of work-sheets is impressed upon the continuous web 16, by means of the inner carbon band or belt 12; thus providing a separate carbon copy of each successive letter typed, and also preserving a copy of all the matter ty upon successive work sheets upon the we carried by the rolls 15, 17 permanently associated with the carriage. v

In order to facilitate the setting 11 of the manifolding device as a whole the p aten 3 is preferably made easily removable from the end plates 5, 6 whereby it is carried, for which purpose the said end plates, as shown in Figure 3, are rovided with short shafts 34, the inner en of which are provided with square recesses into which a fixed support or trunnion 35 at one end of the platen,

and a movable su port or trunnion 36 at the other end thereo enter, the last-mentioned or movable support being in turn carried by a bushing 37 inserted in an opening formed 'in the ends of the platen and the same being forced outwardly by means of a spring 38. A disk 39 fast u n the movable support 36 forms a finger-piece whereby the support 36 maybe easily moved inward agalnst the mounted in said end members above the first-mentioned roll for holding in distended condition a longer continuous carbon-belt extending from the outside of the first carbon-beltaround the platen to be fed thereby,

the two rolls cooperating with the longer carbon-belt being so positioned with reference to the roll which guides the first-mentioned carbon-belt as to hold the second carbon-belt away from the first carbon-belt at the receiving and delivery sides ofvthe platen to enable a work-web, to receive a carbon copy, to be fed between the belts at the receiving side of the platen and to be freed therefrom at the delivery side of the platen.

8. In a device of the class described, the combination with a movable carriage having a revoluble platen, of a framemounted on said carriage and comprising an up- 20 weirdly-extending member, a. supply-roll shaft and a winding-roll shaft journaled in said member, and an idler roller journaled in said member between said shafts and adapted to bear on the web-surfaces of a 25 having their longitudinal axes in the same 30 plane.

EDWIN MARC FRANCQIS GUIGNARD. VVit-nesses:

HUGH ROBINSON,

Cms. I. KLINE; 

